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Finding the Fourth Proportional to 18,645.01, 27,979.31 and 16,893.59

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Solution

The fourth proportional to 18,645.01, 27,979.31 and 16,893.59 is: 25,351.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,645.01 : 27,979.31 = 16,893.59 : x
  2. Step 2: Convert to fraction form
    18,645.01/27,979.31 = 16,893.59/x
  3. Step 3: Cross multiply
    18,645.01x = 27,979.31 × 16,893.59
  4. Step 4: Simplify right side
    18,645.01x = 472,670,767.26
  5. Step 5: Solve for x
    x = 472,670,767.26/18,645.01
  6. Step 6: Final answer
    x = 25,351.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.